CN102733309A - Steel guide girder with eagle mouth - Google Patents
Steel guide girder with eagle mouth Download PDFInfo
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- CN102733309A CN102733309A CN2012102028021A CN201210202802A CN102733309A CN 102733309 A CN102733309 A CN 102733309A CN 2012102028021 A CN2012102028021 A CN 2012102028021A CN 201210202802 A CN201210202802 A CN 201210202802A CN 102733309 A CN102733309 A CN 102733309A
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- nose girder
- plate
- steel nose
- steel guide
- guide girder
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Abstract
The invention discloses a steel guide girder with an eagle mouth, comprising a steel guide girder end head plate, a steel guide girder web plate top plate, a steel guide girder web plate base plate and a steel guide girder web plate, wherein the steel guide girder end head plate and the steel guide girder web plate are arranged between the steel guide girder web plate top plate and the steel guide girder web plate base plate, the upper part of the steel guide girder end head plate is provided with an eagle mouth structure, the eagle mouth structure comprises an upper inclined cover plate, a lower force-carrying plate and vertical stiffening plates, the upper inclined cover plate has the shape of a plate of which the front end is downwards inclined, the lower force-carrying plate is perpendicular to the plane where the steel guide girder end head plate is arranged, the vertical stiffening plates are perpendicularly connected between the upper inclined cover plate and the lower force-carrying plate at intervals, the back end of the upper inclined cover plate is fixed with the edge of the steel guide girder web plate top plate, and the back end of the lower force-carrying plate is fixed with the steel guide girder end head plate. The steel guide girder with the eagle mouth disclosed by the invention is convenient and quick to machine, low in manufacture cost, attractive in appearance, and convenient to use, and the front end of the steel guide girder is jacked up to excess a slide way due to the eagle mouth, so that the steel guide girder can conveniently pass through a pier at the front.
Description
Technical field
The present invention relates to a kind of steel nose girder, belong to the incremental launching method process and use the steel nose girder technical field with olecranon.
Background technology
In bridge construction, therefore bridge, often adopts incremental launching method to set up owing to need to stride railway, highway or cross over rivers etc. and can not adopt support to set up, and incremental launching method needs accomplish setting up of bridge by steel nose girder.
There is following some shortcomings part in existing steel nose girder in work progress:
1, the steel nose girder cantilever end is because deadweight makes that amount of deflection is bigger under its front end;
2, in the incremental launching construction process, steel nose girder elevation and skew need to proofread and correct, and are difficult for reaching but proofread and correct;
3, the less stable of bridge cantilever segment.
Summary of the invention
The objective of the invention is to: a kind of steel nose girder with olecranon is provided; It is bigger to solve existing steel nose girder amount of deflection under the steel nose girder cantilever end that exists under the existing fulcrum support; The front end deadweight of fulcrum place is heavier; Proofread and correct the steel nose girder elevation and be difficult for skew, and the technical problem of the less stable of bridge cantilever segment, thereby the problem that exists in the above-mentioned prior art can effectively be solved.
The objective of the invention is to realize: a kind of steel nose girder with olecranon through following technical proposals; Comprise steel nose girder end plate, steel nose girder web top board, steel nose girder web base plate and steel nose girder web; Said steel nose girder end plate and steel nose girder web are located between steel nose girder web top board and the steel nose girder web base plate, are provided with the olecranon structure on the top of steel nose girder end plate.
As a kind of optimal way; Said olecranon structure comprises oblique cover plate, following force bearing plate and vertical stiffener; Said oblique cover plate is that front end is tabular toward what have a down dip, and following force bearing plate is vertical with plane, steel nose girder end plate place, and the vertical interval of vertical stiffener is connected between oblique cover plate and the following force bearing plate; Go up the rear end of oblique cover plate and the edge of steel nose girder web top board and fix, the rear end of following force bearing plate and steel nose girder end plate are fixed.
As further optimal way, on the steel nose girder web, between the rear end of descending force bearing plate and steel nose girder web top board, be provided with steel nose girder upper limb stiffener.
As further optimal way, on the steel nose girder web, be provided with from the vertical steel nose girder web lower edge stiffener up of steel nose girder web base plate.
The effect of part component is following among the present invention:
Olecranon: be that jacking has a stress point during for the downwarp of steel nose girder front end, can the steel nose girder jacking be surpassed the slideway end face.
Compared with prior art, beneficial effect of the present invention: the steel nose girder processing and fabricating of band olecranon of the present invention is easy, quick, and cost of manufacture is low, and good looking appearance, and is easy to use; Specifically, possess following advantage:
1, owing to be provided with olecranon in steel nose girder the place ahead, therefore, jacking has a stress point during downwarp of steel nose girder front end, and olecranon can surpass the slideway end face with the steel nose girder jacking, makes the steel nose girder front end can cost slideway, has made things convenient for steel nose girder through the place ahead bridge pier.
Alleviate the front end deadweight at the fulcrum place, reduce amount of deflection under the steel nose girder cantilever end;
2, guarantee to proofread and correct the steel nose girder elevation in the incremental launching construction process and correct and squint, the guard box beam is smoothly through bridge pier and fulcrum top;
3, reach fulcrum and front bottom end when being lower than the fulcrum top when olecranon, can be through vertical counterforce device jack-up steel nose girder front end be installed, thus provide opposing torque to help bridge cantilever segment balance and stability.
Description of drawings
Fig. 1 is the Facad structure sketch map of a kind of steel nose girder with olecranon of the present invention;
Fig. 2 is the side structure sketch map of a kind of steel nose girder with olecranon of the present invention.
Among the figure: the last oblique cover plate of 1-, force bearing plate under the 2-, the vertical stiffener of 3-; 4-steel nose girder end plate, 5-steel nose girder web top board, 6-steel nose girder web base plate; 7-steel nose girder web, 8-steel nose girder upper limb stiffener, 9-steel nose girder web lower edge stiffener.
The specific embodiment
Below in conjunction with specific embodiment and accompanying drawing the present invention is further described.
Disclosed all characteristics in this manual, or the step in disclosed all methods or the process are except the characteristics of mutual repulsion and/or the step; All can make up by any way; Only if special narration all can be replaced by other equivalences or the alternative features with similar purpose, promptly; Only if special narration, an embodiment in a series of equivalences of each characteristic or the similar characteristics.
Like Fig. 1, shown in Figure 2; A kind of steel nose girder with olecranon of the present invention comprises steel nose girder end plate 4, steel nose girder web top board 5, steel nose girder web base plate 6 and steel nose girder web 7; Said steel nose girder end plate 4 and steel nose girder web 7 are located between steel nose girder web top board 5 and the steel nose girder web base plate 6; On steel nose girder web 7, between the rear end of descending force bearing plate 2 and steel nose girder web top board 5, be provided with steel nose girder upper limb stiffener 8; On steel nose girder web 7, be provided with from steel nose girder web base plate 6 vertical steel nose girder web lower edge stiffeners 9 up.Be provided with the olecranon structure on the top of steel nose girder end plate 4, can steel nose girder front end jack-up be surpassed slideway, make the steel nose girder front end can cost slideway, made things convenient for steel nose girder through the place ahead bridge pier.Said olecranon structure comprises oblique cover plate 1, force bearing plate 2 and vertical stiffener 3 down, and each plate all adopts steel plate to process.Said oblique cover plate 1 is tabular toward what have a down dip for front end; Following force bearing plate 2 is vertical with plane, steel nose girder end plate 4 place; Vertical stiffener 3 vertical intervals are connected between oblique cover plate 1 and the following force bearing plate 2; Go up the rear end of oblique cover plate 1 and the edge of steel nose girder web top board 5 and fix, the rear end of following force bearing plate 2 and steel nose girder end plate 4 are fixing.Following force bearing plate 2 is mainly used in the supporting jack, and middle vertical stiffener 3 mainly plays strengthens the effect of olecranon rigidity, goes up oblique cover plate 1 and works to strengthen connecting vertical stiffener 3.
Steel nose girder is following through the place ahead bridge pier concrete grammar:
Steel nose girder calculates and measures steel nose girder front end downwarp value near the place ahead bridge pier the time; When steel nose girder front end end opening arrived the place ahead bridge pier, steel nose girder upper front end olecranon was positioned on the bridge pier.
Steel nose girder of the present invention is when concrete construction; 1 jack respectively is set below the left and right olecranon of steel nose girder, and more than nose girder front end jacking to chute surface top, the case beam continues jacking forward simultaneously; After nose girder front end end opening gets into slideway 20cm at least, can remove the jacking jack.
The above is merely preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of within spirit of the present invention and principle, being done, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (4)
1. steel nose girder with olecranon; It is characterized in that: comprise steel nose girder end plate (4), steel nose girder web top board (5), steel nose girder web base plate (6) and steel nose girder web (7); Said steel nose girder end plate (4) and steel nose girder web (7) are located between steel nose girder web top board (5) and the steel nose girder web base plate (6), are provided with the olecranon structure on the top of steel nose girder end plate (4).
2. a kind of steel nose girder as claimed in claim 1 with olecranon; It is characterized in that: said olecranon structure comprises oblique cover plate (1), following force bearing plate (2) and vertical stiffener (3); The said oblique cover plate (1) of is past have a down dip tabular of front end; Following force bearing plate (2) is vertical with plane, steel nose girder end plate (4) place; Vertical stiffener (3) is vertical to be connected between oblique cover plate (1) and the following force bearing plate (2) at interval, goes up the rear end of oblique cover plate (1) and the edge of steel nose girder web top board (5) and fixes, and the rear end of following force bearing plate (2) and steel nose girder end plate (4) are fixing.
3. a kind of steel nose girder with olecranon as claimed in claim 2 is characterized in that: on steel nose girder web (7), be provided with steel nose girder upper limb stiffener (8) between the rear end of force bearing plate (2) and the steel nose girder web top board (5) under being positioned at.
4. a kind of steel nose girder with olecranon as claimed in claim 3 is characterized in that: on steel nose girder web (7), be provided with from the vertical steel nose girder web lower edge stiffener (9) up of steel nose girder web base plate (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210202802.1A CN102733309B (en) | 2012-06-19 | 2012-06-19 | Steel guide girder with eagle mouth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210202802.1A CN102733309B (en) | 2012-06-19 | 2012-06-19 | Steel guide girder with eagle mouth |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102733309A true CN102733309A (en) | 2012-10-17 |
| CN102733309B CN102733309B (en) | 2014-04-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210202802.1A Active CN102733309B (en) | 2012-06-19 | 2012-06-19 | Steel guide girder with eagle mouth |
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| Country | Link |
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| CN (1) | CN102733309B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109868722A (en) * | 2019-03-26 | 2019-06-11 | 中交武汉港湾工程设计研究院有限公司 | A kind of pier method on box beam end construction and box beam convenient for upper pier |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009079401A (en) * | 2007-09-26 | 2009-04-16 | Nippon Steel Engineering Co Ltd | Girder structure using corrugated steel plate web |
| CN201843084U (en) * | 2010-11-09 | 2011-05-25 | 天津城市建设学院 | Single-box multi-room box girder template |
| CN201873937U (en) * | 2010-10-22 | 2011-06-22 | 广东省公路勘察规划设计院股份有限公司 | Combined bridge with self resistance to crack |
| JP2011157733A (en) * | 2010-02-01 | 2011-08-18 | Yokogawa Bridge Corp | Method of constructing composite steel floor slab bridge, steel floor slab with rib, and composite steel floor slab bridge |
| CN202688902U (en) * | 2012-06-19 | 2013-01-23 | 中铁八局集团昆明铁路建设有限公司 | Steel guide beam with olecranon-shaped structure |
-
2012
- 2012-06-19 CN CN201210202802.1A patent/CN102733309B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009079401A (en) * | 2007-09-26 | 2009-04-16 | Nippon Steel Engineering Co Ltd | Girder structure using corrugated steel plate web |
| JP2011157733A (en) * | 2010-02-01 | 2011-08-18 | Yokogawa Bridge Corp | Method of constructing composite steel floor slab bridge, steel floor slab with rib, and composite steel floor slab bridge |
| CN201873937U (en) * | 2010-10-22 | 2011-06-22 | 广东省公路勘察规划设计院股份有限公司 | Combined bridge with self resistance to crack |
| CN201843084U (en) * | 2010-11-09 | 2011-05-25 | 天津城市建设学院 | Single-box multi-room box girder template |
| CN202688902U (en) * | 2012-06-19 | 2013-01-23 | 中铁八局集团昆明铁路建设有限公司 | Steel guide beam with olecranon-shaped structure |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109868722A (en) * | 2019-03-26 | 2019-06-11 | 中交武汉港湾工程设计研究院有限公司 | A kind of pier method on box beam end construction and box beam convenient for upper pier |
| CN109868722B (en) * | 2019-03-26 | 2023-12-12 | 中交武汉港湾工程设计研究院有限公司 | Box girder end structure convenient for pier loading and box girder pier loading method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102733309B (en) | 2014-04-30 |
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